New answers tagged boundary-conditions
0
It depends on the implementation.
More than the connectivity, you need to focus on the orientation of the normals.
The common convention is to define the connectivity such that the normals on the boundary elements point away from the solid. This is relatively easy in 2D since there are only two nodes for one (linear) element.
For 3D, choose the connectivity ...
1
It's just a linear 1D problem, you can easily do implicit time stepping here so that numerical stability would not be a problem. The accuracy should not be an issue either since for such a simple problem you should be able to use any spatial resolution you need.
More specifically, let the equation be discretized in space by any scheme, e.g., low-order ...
Top 50 recent answers are included
